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Question
The normal duration of I.Sc. Physics practical period in Indian colleges is 100 minutes. Express this period in microcenturies. 1 microcentury = 10−6 × 100 years. How many microcenturies did you sleep yesterday?
Solution
1 microcentury = 10−6 × 100 years = 10−4 × 365 × 24 × 60 minutes
\[1 \min = \frac{1}{{10}^{- 4} \times 365 \times 24 \times 60} \text{ microcentury }\]
\[ \Rightarrow 100 \min = \frac{1}{{10}^{- 4} \times 365 \times 24 \times 60} \times 100 = \frac{{10}^5}{365 \times 144} = 1 . 9 \text{ microcenturies }\]
Suppose, I slept x minutes yesterday.
∴ x min = 0.019x microcenturies
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